Cord-guide for overseaming-machines.



No. 762,100. PATENTED JUNEV, 1904.

v A. SPIELMANN. CORD GUIDE FOR O'VBRSEAMING MACHINES.

APPLICATION FILED APR. 23, 1903.

N0 MODEL.

wlrmsssss O INVENTOR I gdal mwruw M61 T I Y L ATTO R was Patented June'7, 1904.

UNITED STATES PATENT OFFIcE.

ADOLPH SPIELMANN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO WILLOOXvAND GIBBS SEWING MACHINE COMPANY, OF 'NElV YORK, N. Y., A CORPORATION OFNEW YORK.

CORD-GUIDE FOR OVERSEAlVIING-MACHINES.

' SPECIFICATION forming part of Letters Patent No. 762,100, dated June'7, 1904.

Application filed April 23, 1903' T ail whmn it may concern:

Be it knownthat I, ADOLPH SPIELMANN, a citizen of the United States ofAmerica, and a resident of Philadelphia, in the county of Philadelphia,in the State of Pennsylvania, have invented an Improved Cord-Guide forOverseaming-Machines, of which the follow ing is a specification. I

My invention is more particularly designed I 0 as an improvement in theconstruction of cordguides for overseaming-machines for which S. Bortonobtained Patent No. 561,043, dated May 26, 1896. In that machine atrimming mechanism is combined with an overseamstitch-forming mechanism,which latter comprises a reciprocating needle and a hooked loopingdevice which moves in a plane diagonal to the line of movement of the,needle above andbelow the cloth-plate. With these devices are combinedguides for carrying filling and binding cords to the stitch-formingpoint, to be laid, preferably, both above and below the edge of the lacecurtain or other material to be trimmed and overseamed. While my presentinvention is applicable to other styles of sewing-machines, it isparticularly applicable to whatis known as the Willcox and Gibbsoverseaming-machine, which is partially illustrated in theabove-mentioned 3 patent and is more fully illustrated in Patents Nos.472,094 and 472,095, dated April 5, 1892.

In the use of that machine with cord-guides,

as illustrated in Patent No. 561,043, the lower cord is carried to apoint below thepresserfoot in a path close to the path of movement ofthe looper. In practice it has been found that when the cord being fedgets slack it is liable to drop a loop in the path of the rapidly-movinglooper, which is then liable to 4 catch the cord and spoil the edgingand either break the cord or be damaged itself; To prevent this trouble,I have devised an improved construction of lower cord-guide, which Iwill now describe.

In the accompanying drawings, Figure 1 is a sectional view, on anenlarged scale, through a part of the Willcox and Gibbsoverlook-machine, showing the application of my improved Serial N0.154,009. (No model.)

cord-guide. Fig. 2 is a perspective view of my improved cord-guidedetached. Fig. 3 is another perspective View of a part; and Fig. 4 is aside elevation, partly in section.

Referring to Fig. 1, A represents the surface of the table orcloth-plate, it is the looper, and 10 is the needle, while P representsthe presser-foot, having a downwardly-projecting finger g, around whichthe lower cord X is passed to the under side of the edge of the goods.Below the presser-foot is a feed-dog m, and at the left side. of thepresser-foot above is the trimmer device, of which 42 represents theupper blade held in the outer end of the vibrating arm 41 alongside theshoe 44. This upper reciprocating blade 42 works in conjunction with thelower fixed blade 90. X is the upper cord, led down from above through aguide (Z on the trimmer-arm 41 to the presser-foot P. As will be seen onreference to Fig. 3 of Patent No. 561.043, there is quite a stretch oflower cord X between the guide-eyef and the pendent finger g of thepresser foot, around which said cord passes to the goods. This cord isclosely adjacent to the path of the looper 7L, and if the cord getsslack, as it sometimes will, it is liable to get into the way of and becaught by the looper. When the machine is in operation, the loopertravels in'a path extending above and below the cloth-plate at a veryhigh rate of speed, and if it catches in the loop of the cord either thelatter will break or the looper itself will be damaged. In any case animperfect edging is produced. I have there' fore devised a newconstruction of lower cordguide to prevent the cord getting into thepathof the looper.

My invention consists, essentially, of a cordguiding tube T, whichextends along the surface of the cloth-plate from the point where thepath of the cord begins to be adjacent to the path'of the looper and upto or adjacent to the edge of the presser-foot. This tube T is closed onthe side adjacent to the looper to protect the cord from possiblygetting into the path of the looper; but as the space between thelooper-path and the shoe 44 for the upper trimmer-blade 42 is somewhatlimited I have thinned down this tube by cutting it away at t, as shownin Fig. 3, leaving the passage 00 for the cord open on that side; but asthis face of the guide will lie up close against the shoe 4A the latterwill keep the cord in place. This tube T is mounted upon the bed-plate.It may be by the same screw 8 which was used to secure the cord-guide fin place. I prefer to make this cord-guide tube T yielding in thedirection of its length, so that while at its outer end it may bear upagainst the presser-foot and the shoe 44 of the upper trimmer-arm-41lateral adjustment of either the presser-foot or the trimmer-arm, orb0th, (to the left in Fig. 1,) as provided for in Patents Nos. M209 and472,095, may

be'accomplished. For this purpose the tube T may, as shown in Figs. 2,3, and 4, be carried by a slide-bar T, guided in a horizontal groove 1"in the plate R, which is to be secured by the screw 8, as abovedescribed. The slide T has a laterally-projecting arm t, which carriesthe tube T, and this arm t has plenty of play in the space 1*, cut inthe blade R. A'suitable pressure-spring bears against the back of thearm t, as shown in Fig. 4;. 1n the drawings I have shown the spring n asinclosed within a horizontal tubular opening in the plate R and pressingagainst a round rod 17., which itself bears against the arm t, carryingthe guide-tube T, while a plug n closes the back of the hole.

I claim as my invention 1. The combination of the cloth-plate, needle,presser-foot trimmer and trimmer-shoe of an overseaming sewing-machinewith a looper having a path of movement above and below the cloth-plate,and a lower cord-guide consisting of a tube adjacent to the path of thelooper and extending between the latter and the trimmer-shoe to thepresser-foot, as

and for the purpose described.

2. The combination of the needle, looper and presser-foot of anoverseaming-machine with a cord-guide extending alongside the path ofthe looper to the presser-foot, said guide being yielding in thedirection of its length, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ADOLPH SPIELMANN.

Witnesses:

CHARLES H. HOWSON, Jos. H. KLEIN.

